fix keyPress bug and implement blendMode (closing #21)
disable to resize a window size
we did (#11).
Update README.md
Update README.md
fix #22
modify docs

fix docs
add install section in .travis.yml.
Merge pull request #23 from cosmo0920/add-install-section-travis-yml

add before_install section into .travis.yml.
Update README.md
fix damn sneaking typo
ImpredicativeTypes
let it obtain window size accessibility
version bump